Melissa Morgan-Oakes has done a wonderful book on kniting two socks at the same time on one long circular needle (40"). I've used her method to do leg warmers, sleeves, fingerless gloves and so on. Anything you need two of you can use this method for and it's WONDERFUL. I found it much easier to work with just the one needle rather than two.
I think you might like this once you get familiar with it!
Hope this helps!
In progress - designing, knitting and writing a knitting book, "Design Your Own Gourmet
Kitchen Cloths and Accessories".